Thursday, October19, 2017 L-36.com


Marine Weather and Tides
Beloit, WI

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:13AMSunset 6:07PM Thursday October 19, 2017 4:21 AM CDT (09:21 UTC) Moonrise 6:52AMMoonset 6:30PM Illumination 1% Phase: Waning Crescent; Moon at 29 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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LMZ646 Wind Point Wi To Winthrop Harbor Il- 306 Am Cdt Thu Oct 19 2017
Early this morning..West wind 10 to 15 knots. Partly cloudy. Waves 1 to 2 feet.
Today..Northwest wind 5 to 10 knots backing southeast late in the afternoon. Sunny. Waves around 1 foot.
Tonight..South wind 5 to 10 knots rising to 10 to 15 knots. Clear. Waves around 1 foot.
Friday..South wind 10 to 15 knots becoming south 10 to 15 knots with gusts to around 20 knots late in the afternoon. Sunny. Waves 1 to 2 feet.
Friday night..South wind 10 to 15 knots rising to 15 to 20 knots early in the morning. Partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and overnight.
LMZ646 Expires:201710192100;;078428 FZUS53 KMKX 190806 NSHMKX Nearshore Marine Forecast National Weather Service MILWAUKEE/SULLIVAN WI 306 AM CDT Thu Oct 19 2017 For waters within five nautical miles of shore on Lake Michigan LMZ646-192100-

7 Day Forecast for Marine Location Near Beloit, WI
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location: 42.52, -89.05     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 190819
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
319 am cdt Thu oct 19 2017

Short term
Today and tonight... Forecast confidence is high.

A weak cold front is currently moving through far ERN wi. A ridge
of high pressure will follow the front and shift ewd across srn
wi and il today. Despite the cold advection early this morning,
temps will rebound to around 70 degrees once again. The lighter
winds today will allow a lake breeze to develop this afternoon.

Sly winds and weak warm advection will then return tonight.

Long term
Friday... Forecast confidence is high:
high pressure will bring another very pleasant day to southern
wisconsin on Friday. Bumped temps up above model consensus once
again as model surface temps still aren't reflective of the very
mild airmass aloft.

Saturday and Sunday... Forecast confidence is medium to high:
low pressure and an associated cold front will approach the area
on Saturday, with models in fair agreement in the trough front
passage late Saturday night into Sunday. This is a bit slower than
models were showing 24 hours ago. Pretty good surge of moisture
ahead of this system, with model precipitable water values rising
to around 1.50 inches. Decent forcing with this system too, so
still feel good with likely precip chances.

Given the slower progression of the system, there is increasing
confidence in a dry day Saturday. This will also result in less
clouds and milder temps, so bumped high temps up a bit. Temps get
a bit tricky Sunday, depending on the exact timing of the frontal
passage. Higher confidence in 60s in the east where the front
arrive the latest. Could be stuck in the 50s much of the day west
once the front gets through.

Monday through Wednesday... Forecast confidence is medium:
models are still struggling to come into agreement with finer
details of the pattern for early next week. A potent trough will
approach during the day Monday, then slow down and nearly stall as
it transitions into a closed mid upper level low.

Timing strength placement of resultant surface low development is
the biggest issue. Though models all have on and off rain chances
through this period, the differences between them impact
temperatures and precip amounts. Overall though, looks like a
cooler and wet first half of the week.

Aviation(09z tafs) Vfr conditions today through Friday.

Marine Light wly winds will give way to ssely winds via a lake
breeze this afternoon. Modest sly winds will then develop for fri
but will become breezy and gusty for Sat into Sun am. High waves
will develop especially north of port washington. Thus a small
craft advisory will likely be needed for the weekend.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Today tonight and aviation marine... Gehring
Friday through Wednesday... Ddv


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KNSW3 - Kenosha, WI 66 mi81 min WSW 11 G 16 60°F 1016.3 hPa (+0.7)
WHRI2 - Waukegan Harbor, IL 66 mi41 min W 7 G 11 58°F
MLWW3 - Milwaukee, WI 72 mi31 min WNW 11 G 13 59°F

Wind History for Calumet Harbor, IL
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Last
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S5
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G10
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G11
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G17
S13
G20
S12
G16
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G19
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G11
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G13
SW5
G11
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SW8
G12
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G13
S11
G16
S11
G15
S12
G16
SW9
G13
SW12
G16
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G19
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G20
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G18
SW8
G12
SW12
G15
S7
G10
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G11
S8
G11
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G12
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G11
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G12
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G10
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G10
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SW3
G7
W4
G7
SW3
W2
SW4
SW6
G10
SW6
G10
SW7
G13
SW7
G11
W6
G12
SW4
G11
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G11
SW6
G10
SW3
G6
SW3
S1
S1
S4
S4
SW3
G7
S6
S7
S7
S8

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Janesville-Rock County, WI7 mi46 minN 010.00 miFair52°F44°F77%1017.3 hPa
Rockford, Greater Rockford Airport, IL22 mi27 minW 410.00 miFair52°F44°F75%1018.2 hPa

Wind History from JVL (wind in knots)
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Last 24hrS5S5S5S7S9S10S10S13SW18
G23
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G23
SW18
G23
S19
G23
SW19
G23
S10
G14
S9S7SW5SW6SW9SW8SW9SW4CalmCalm
1 day agoSW9SW9SW10SW10SW10SW10W10
G15
W13
G19
--SW14
G20
SW14
G20
SW14
G20
SW14
G20
SW12SW9SW7SW7S6S5SW6S7S6S4S4
2 days agoCalmCalmCalmCalmCalmCalm3W8W9W10W10W6
G15
W6W6----S5S5S5S4S5S5SW4SW7

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Milwaukee/Sullivan, WI (5,6,7,8)
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Ground Weather Radar Station Milwaukee, WI
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weather_mapweather_map weather_map

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.